About This Place
New Boston is a city in Mercer County, Illinois, United States. The population was 632 at the 2000 census.
New Boston is located at 41°10′10″N 90°59′48″W / 41.16944°N 90.99667°W / 41.16944; -90.99667 (41.169570, -90.996709).
According to the United States Census Bureau, the city has a total area of 1.4 square miles (3.6 km²), of which, 0.9 square miles (2.4 km²) of it is land and 0.4 square miles (1.2 km²) of it (32.37%) is water.